Post Tensioned Special Inspections
Post-tensioning is a specialised method used in bridge construction to enhance the strength of concrete by tensioning high-strength steel tendons after the concrete has cured. This technique provides improved structural capacity compared to traditional reinforced concrete. To ensure the integrity and longevity of post-tensioned bridges, regular and thorough inspections are essential.
At Investigo, we offer specialized Post-Tensioned Special Inspections (PTSI) in line with CS 465 - Management of Post-Tensioned Concrete Bridges. We work closely with clients to identify potential concerns early in the process, advising on the necessary investigative works and providing tailored solutions. Our phased approach to inspections is designed to reduce unnecessary costs while focusing on the most critical areas of the structure that require detailed investigation.
Once the inspections are complete, we provide our clients with a detailed, interpretive report that includes all findings, laboratory test results, and an evaluation of the condition of the post-tensioning system. Our reports offer clear recommendations for any necessary follow-up investigations or repairs, ensuring that clients have all the information needed to make informed decisions regarding their infrastructure.
Whether you need advice on further investigative techniques or insights into potential repair methods, Investigo is committed to delivering comprehensive, actionable results that help maintain the safety and longevity of post-tensioned bridges.
ICorr Paint Surveys & Protective Coatings Inspections
At Investigo, our team of ICorr Level 1 and Level 2 certified protective coatings inspectors is equipped to provide a full range of inspection and testing services. Our expertise covers all aspects of protective coatings, from QA and OC inspections to equipment control and calibration.
We offer a variety of services including the production of written instructions and specifications, as well as the capability to carry out testing works on coating systems and materials. Our team conducts thorough corrosion assessments and manages the control and testing of blasting abrasives to ensure the best preparation for coating applications.
In addition, we perform contamination testing and sampling, evaluate coating systems and paint formulations, and conduct paint film testing to ensure optimal application quality. Our inspectors are skilled in identifying coating faults and defects, applying metallic coatings, and implementing cathodic protection systems.
Investigo provides both factual and interpretive reports that detail all findings, offering valuable insights into the integrity and effectiveness of the protective coatings. Whether you require routine inspection or specialized coatings services, Investigo’s qualified team ensures the highest standards of quality and safety for your assets.
Metallic Inspection & Sampling
Investigo offers comprehensive metallic inspection and sampling services to evaluate the integrity of metal structures. Our expert team conducts a range of advanced testing to assess strength, durability, and condition.
- Hardness Vickers (HV) Testing: We measure material resistance to indentation, ensuring its durability for specific applications.
- Tensile Strength Testing: This test evaluates a material’s ability to withstand tension, helping determine its load-bearing capacity.
- Compression Testing of Cast Iron Cores: We assess the ability of cast iron cores to withstand compressive forces, identifying potential weaknesses.
- Loss in Section: We measure material loss due to wear, corrosion, or damage, evaluating its impact on structural strength.
- Loss in Strength Due to Fire Damage: Our team evaluates the effect of fire exposure on metallic structures, ensuring their safety and integrity after thermal damage.
Investigo provides detailed, interpretive reports to guide maintenance, repairs, or replacements, helping clients make informed decisions about their assets.
Scour Assessments
Bridge scour refers to the erosion or removal of sediment around a bridge’s foundations caused by the flow of water. This process can significantly impact the stability of the bridge’s foundation, posing a risk to its safety and integrity.
Investigo specializes in Stage 2 scour assessments for bridges, conducted in line with Network Rail’s NR/SP/CIV/080 and DMRB BD 97/12 standards. These assessments require detailed information about the foundation’s material composition, voiding, depth, and underlying layers. To gather this critical data, we utilize diamond-tipped core drilling to obtain samples from the full depth of the foundation.
Our team of experienced engineers ensures precise core logs and a quick turnaround, delivering reliable results to clients. Additionally, our engineers are DEFRA-trained for working in water, and we can provide boat access if needed. With in-house RYA Level 2 qualified personnel, we offer efficient and safe access solutions for water-based investigations.
Underwater Examinations
Investigo provides specialized underwater examination services, ensuring the thorough assessment of submerged structures in compliance with Network Rail standards. Our experienced team conducts topographic surveys and detailed inspections to evaluate the condition of underwater infrastructure, such as bridge foundations, piers, and other critical components that are exposed to the elements beneath the waterline.
We understand the complexities of working in aquatic environments and offer a range of access solutions to suit the specific needs of each project. Our access methods include pontoon setups, which provide stable platforms for examination and testing, as well as rope access and boat-based inspections. This flexibility allows us to reach challenging or remote areas that may otherwise be difficult to access.
Whether for routine inspections, damage assessments, or condition monitoring, our team uses advanced techniques and equipment to deliver precise, reliable results. We ensure that all underwater examinations are conducted safely, efficiently, and in accordance with the required industry standards.